Cylinder-inlaying machine.



J. H, KLASSEN. CYLINDER INLAYING MACHINE. APPLICATION FILED IIINEII. IsIIs.

:ne "snare naar isere.

. .Tacos n. kussen', or Los ANGELES, CALIFORNIA.

I CYLINDER-INLAYING MACHINE.

Y Specification of Letters Patent.

Patented Mar. 4,

yfipaieatin filed .Tune e, 191s. `serial No. 238.615.

'To allwhom t may concern;

- Be it known that 1,"JA'Uo H. Krassen,

' a citizen of the United States, residing at Los Angeles., in the county of Los vAngeles and State of California, havefinvented new and useful Improvements in Cylinder-Inlay ing Machines, of which the following 1s al specification.

My object is to make a cylinder inlaying machine and my invention consists in the novel features herein shown, described and claimed.

Specifically, my .object is to make a machine by which an engine cylinder .may be inlaid and patched instead of boring out the cylinder to remove the worn spots and make the cylinder round. By the old method, it is necessary to rebore all the cylinders in order to preserve a well balanced engine having thesame amount of power generated in each cylinder. By the use of my` invention itis only necessary to repair the worn or scored cylinder, thusavoidin the expense of reboring the other cyhnders of the engine which are not in need of repairs.

Figure 1 isa perspective of a cylinder inlaying machine, embodying the principles of my' invention, in use, the cylinder being 2 is an enlarged fragmentary sectional detail substantially on the line 2--2 of Fig. 1.V

Fig. 3 is a fragmentary cross-.section on the line 3-.3 of Fig. 2.

Fig. 4 is Van enlarged vertical longitudinal central section of the router chuck removed lfrom its support, as indicated by the line 1-Atofl4`ig 1.

Fig. Sie a view analogous to Fig. 4 and showing the trip hammer chuck.

ig. 6 is a cross-section on the line 6 6 of Fig. `5.

Fig. 'ZF-is a view analogous to Figs. 4`and andsliowing the miller chuck.

Fig. 8 is a. persy' .ive of the straight router. v y

Fig. 9 is a perspective of the dove-tail router.

Fig. 10 is a fragmentary cross-section of the wall of a cylinder, showing the spot which is to be removed and inlaid.

Fig. 11 shows the spot removed by the use of the straight router shown in Figs. 4 and 8 and producing a straight walled slot.

inoilinted upon the machine ready for operaprises straight vertical legs 2, 3, 4 and 5,

the front horizontal brace 6 connecting the forward edges of the legs 2 and 5, the front bed plate 7 connecting the upper ends of the legs 2 and 5 and extending backwardly fromv the upper edge of the brace 6, the rear bed plate 8 connecting the upper ends of the legs 3 and 4, and the frame ends 9 and 1 0 connecting'the ends of the bed plates 7 and 8; the end 9 connecting the upper ends ofthe legs 2 and 3 and the end 10 connect.

ing the upper ends of the legs 4 and 5.

The carriage 11 consists of a lower plate 12 and an upper plate 13 secured together by bolts 14. The plates 12 and 13 fit in the opening 15 between'the' bed plates 7 and 8 and the inner edges 16 and 17 of the plates 7 and 8 are 19t-shaped in cross-section to lit in V-shaped slide-ways formed at the edges of the plates 12'and 13, so that the carriage will slide from one end of the opening 15 to the other.

A. screw-threaded bearing 18 extends downwardly from the carriage 11 and a feed screw 19 has an enlarged screw-threadec'l portion 20 fitting in the bearing 18 and a reduced smooth portion 21 which will. slide through the bearing, and the feed screw is rotatably mounted in the ends 9 and 10 and has a handle 22, so that when the handle 22 is manipulated the carriage 11 will be re-v ciprocated to the extent of the screw 20 and When/the screw 2O runs out of the bearing 1 8 the carriage may be moved back and forth to the extent of the smooth portion 21 without manipulating the handle 22. The feed screw 19 is provided with collars 23 tohold it from endwise motion.

The motor platform 24 is formed integral with the lower carriage'plate 12 and extends backwardly lunder the bed plate 8 to a distance beyond the back side ofthe bed plate, and the motor 25 is mounted upon this platform back of the bed plate 8. A bracket ion 26 is secured to the motor platform 24 and extends upwardly.v The motor shaft 27 is extended and operates in a bearing 28 in the upper end ofthe bracket 26, and the pulley 29 is fixed upon the shaft 27.

Two bearings 30 extend upwardly from the center of the carriage 11. :The spindle post 31 is mounted between these bearings upon a pivot 32. Arms 33 and 34. extend horizontally and longitudinally from the lower end of this spindle post 31. An adjusting screw 35 is screw-seated upwardly through the carriage l1 against the lower 'face of the arm 33. A stud 36 is fixed in the carriage 11 and extends upwardly loosely through the arm a spring 37 is placed upon the stud 36 on top of the arm 33 and a spring seat 3S ris fixed in the upper end of the Stud 36 against the spring 37, the tension of the spring beingexerted to hold the arm 33 against the adjusting screw 35. A stud 39 is fixed in the carriage 11 and extends upwardly loosely through the arm 34 and jam nuts 40 and 41 are screw-seated upon the stud 39 on top of the arm 34, so that by manipulating the jam nuts 40 and 41 and the set-screw 35 the spindle post 31 may be tilted on a transverse axis and accurately adjusted to a desired tilted position and rigidly held in that position.

The spindle head 42 is formed integral with the upper end of the spindle post 31, a sleeve 43 is rotatably mounted longitudinally in the head 42, set. collars 44 and 45 are placed upon the ends of the sleeve 43 against the ends of the head 42, set-screws l 46 and 47 are screw-seated through the collars 44 and 45 and through the ends ot' the sleeve 43, and a. fulcrum 48 extends from the inner face of the sleeve 43 at its longitudinal center.

The tubular spindle casing 49 extends through the sleeve 43 and rests on the fulerurn 48 and is engaged by the set-screws 4G and 47, so that by manipulating` the setserews 46 and 47 the easing 49 may be adjusted into a line parallel with the sleeve 43 or it may be adjusted into any desired anguiar line within the limits of the chamber 50, said chamber 50 within the sleeve 43 being considerably lai-ger than the casing 49.

The clamp 51 is placed upon-the casing 49 and has a. handle 52 so that when the clamp 51 is tightened the casing 49 may be rotated by manipulating the .handle and it the set-screws 46 and 47 are tight against the casing 49 the sleeve 43 will rotate with the casing 49, thereby carrying the set-screws il-6 and 47 and the tulcrum 4S to change the augularity of the swing of the casing 49 as desired.

Sleeves are inserted into the easing 49 to form the spindle bearnigs 53. 54 and and the splndle 56 is mounted in these bearings,

5 there being a tongue 57 extending from the chuck end of the spindle and a pulley .58 upon the other end of the spindle. A. belt 59 connects the pulley 29 to the pulley 58, so that when the motor 25 operates, the spindle 56 will be rotated.

A clamp 60 is mounted upon the easing 49 and an arm G1 extends from the clamp 60. Arms 62 and 63 extend from the spindle post 31 and the arm 61 is located between these arms 62 and 63. Set-screws and jam nuts 64 and 65 are screw-seated through the arms 62 and 63 against opposite sides of the arm 61 so that when the clamp 60 is tightened upon the casing 49 the easing 49 may be rotated to accurately guide the chucks 66, 67 and 68 by manipulating the jam nuts and set-screws 64 and 65.

The details of the chuck 6G are as follows: Ball bearings 69 and 70 are xed in one end of a tubular socket 71 and the other end of the socket' is split to forma clamp '72, said clamp fitting a split collar 73 and said split collar 73 fitting the end of the spindle cas-A ing 49, so that when the clamp 72 is tightened the socket is rigidly mounted upon the spindle casing. A stub shaft 74 is mounted in the ball bearings 69 and 70 and has a groove 75 in one end to tit the tongue 57, so that the stub shaft 7 4 will rot-ate with the spindle 56. A bevel gear 76 is lixed upon the opposite end ot' the shaft 74 from the Agroove 75. A split socket 77 tits upon the socket 71 around the end carrying the bearings 69 and 70, and the socket is clamped in i place by a screw 78 extending tl'nfough ears 79. A casing 80 is formed integral with the socket 77 and ball bearings S1 and 82 are mounted in the easingl SO, the axis of the ball bearings 81 and beingat right angles to the axis of the bearings (Si) and 79. spindle 33 is rotatably mounted in the ball bearings S1 and 82. A bevel gear S4 is fixed upon the lower end of the spindle 33 in mesh with the bevel gear 76. A bore 35 is formed from the upper end of the spindle 83 and -tapered seat 86 and a central bore extending between the jaws 88 to receive the routers S9 and 90. A set-screw 91 is screw-seated in the upper end ot the bore 85 against the head 87 so that by manipulating said screw the jaws 88 are tightened or loosened upon the router.

The details of the chuck (37 are as follows: The tubular socket 92 has ball bearings 93 and 94 fixed in one end, and the other end is split to form the clamp 95. A socket 96 is split to form the clamp 97 and the clamp 97 tits upon the socket 92 and the clamp 95 tits upon the split collar 73. A, spindle 98 is mounted in the bearings 93 and 94 and has a groove 99 to receive the tongue 57. A casing' 100 is formed integral with the socket 96 and has a chamber 101 at above the upper face of the of the-spindle 98. emmer head 102 is slidingly mountedin the chamber 101. Expansive coil 'springs right angles to the axis 103 and 104 are mounted in seats'extending downwardly from thea-upper end of the hammer headY 102 and extend ,upwardly am'merf head.

f A cap 105 Iis placed upon the easingl 100 to hold against the springs 103 'and 104, vThe 108 to raise the hammer head 102 at each revolution of the spindle, the cambeing flat on its back side', so that when the hammer head has been raised toits limit the roller 108 passes from the cam and the hammer head drops. A spring cushion 110 is placed inthe casing 100 below the hammer head '102. The peen 111' of thehammer extends downwardly from the hammer head 1.02 through the lower .end of the casing 100,.so that as the spindle 98 rotates, the peen 111 is jreciprocated, the striking lblow of the 118 toj hold ther `spindle 'from endwise motion and a groove' 119 at the inner end of peen being"caused by the expansion of the springs 10'3' and 104 and the falling Weight of the hammer head 102,

The details of the chuck 68 are as follows: The tubular` socket 112 has ball bearings 113 and 114 xed in one end, and the other end is slotted to form a clamp 115, said clamp 115 ittin-gthe split collar 73. A

spindle 116 is mounted infthe ball-bearings 113 and 114, Ithere being shoulders 117 and thes'pindle to t the ton-gue 5'7. A milling wheel 120"is removably mounted-upon the outer end of the spindle 116.

The chucks v66, 67 and 68 are interchangeable and the tools are driven by the spindle'56.- j 4 Thev end face 121 of the main frame is v straight up and down and crosswise. `Track bars 122 aresecured to the outer faces of the legs 2 and A sliding platform 123 is mounted on these track bars to move up and down, said sliding platform being held in its adjusted position by set-screws 124 and said latform forminga horizontal sliding plat orm Jfor supporting the cylinder case 125. A plate 126 fits against the facc 121.. Ears 127 extend upwardly from the upper face of the frame and clamping bolts 128 are inserted throughvertical slots 129 in the plate 126 and through the ears 127 so that the plate 126 may be adjusted up and down and held in its adjusted position by tighten-ing the bolts 128. A semi-circular notch 130 is formed from the upper edge of the plate 126. The cylinder case 125 is placed -upon the platform 123 against the plate 126 with the open-ends v,131 of the cylinders facing the plate 126. i

A -shackle 132 comprises the head 133 havc ing an annular groove 134 to receive the upper edge of the plate 126, arms 135 ex- 'tending` backwardly from the head 133 on each side of the lcylinder case 125, a cross bar 136 connecting therear ends of the arms 135, and set-screws 137 inserted through the cross bar to engage the backside of the cylinder case 125 and hold the case against vthe head 133. The head 133 has a-circular opening'138 as large or larger than' the bores 1 of the cylinders and adapted to line up with the lbore of a cylinder7 and the chucks'tl, 67 and 68 mounted upon the spindle casing 49 will pass through the opening 138 into the bore of the cylinder. y

If a cylinder 139 has been operating with a loose wrist pin and the wrist pin has gouged out a groove 140, in the old practice it is necessary to bore out the cylinder to remove the groove 140and then enlarge the' i y piston either by using new rlngs or a new piston. In accordance with my practice, I place the chuck 66 in `place and place the cylinder case 125 in place, as shownin Fig. 1, andl I operate. the chuck and the inachine -to rollte out the groove 140 with they router 89 to produce the straight clean, groove 141. Then I place 'the router 90 in' the chuck 66 and change the straight'side groove 141 to the dove-tail groove 142; Then I place a bar of copper 143 inthe 4groove 142, said bar of copper being rectangular in cross-section and as wide as will go in the slot and considerably th-icker than the depth of the slot. Then I remove the chuck 66 and'place the chuck 67 upon the spindle casing 49 and manipulate the machine so that the peen 111 willtravel back and forth over the bar 143 and hammer the bar into the slot 142 to' produce the' unnished 4inlay 144. Then I remove the chuck 67 and -put the chuck 68 ,into operation and manipulate the machine yto mill off the rough face of the inlay 144 to produce or polish the inlay until it is flush with thel inner face 146 of the cylinder, thereby pro-` ducing the finished linlay 147. After the top cylinder is finished, the cylinder case 125 is` raised by manipulating `the sliding platform 12,3'and the set-screws 124 to bringthe next cylinder into line with the opening 138 and so on until. the set'of cylinders are all inlaid. j,

In order to assure that the proper inlay is of substantially the same hardness as the metal of the cylinder and having the same coeflicient of expansion and contraction, it is necessary to treat the bar or strip of copper 143 as follows: The same is heated redhot, just below thel melting point, and plunged inN coldd Water to' anneal and to Athe semi-finished `inlay 145. Then I grind render the same tlexible. The heating and 'cooling is preferably repeated three or four times.- The strip of copper is then halmmered on its edge in order t condense the metal and close the pores. After the strip of copper has been inserte in the groove 142 of the cylinder, it is' hammered a suficient length of time until it has approximately the same degree of hardness as the metal of the cylinder, after which it 'is' milled off and polished so that the inlay is flush and of the same contour with the inner face 146 of the cylinder.

In place of copper, any other metal or metal alloy of a hardness substantially equal to that of the cylinder and having the same Acoefiicient of expansion and contraction,

Various changes may be made in the details of construction without departing from the spirit of my invention as claimed.

I claim: 1. A cylinder inlaying machine compris ing a stand, means for mounting a cylinder rigidly upon the stand with the bore horizontal, a spindle post adjustably mounted -upon the stand, a spindle head upon the spindle post, a spindle casing adjustably mounted in the spindle head, a spindle in the spindle casing, means for driving the lspindle, and'interchangeable chucks adapted to be mounted upon the spindle casing and operated by the spindle; said chucks being adapted for rout-ino' a groove from the inner face of the cy inder, dove-tailing the groove, hammering a bar into the dove-tail groove, and removing the rough portion of the hammered bar.

In a cylinder inlaying machine, a stand, a carriage mounted to travel on the stand, a spindle post pivotally mounted on the carriage, means for adjustably tilting the spindle post, a spindle head upon the spindle post, a sleeve in the spindle head, a fulcrmn in the sleeve, a spindle casing extending loosely through the sleeve and restspindle post, a sleeve in the spindle head,` Ja iulcrum 1n the sleeve, a spindle casing eX-' tending loosely through the sleeve and resting on the fulcrum, set-screws screw-seated through the ends ot the sleeve, one on each side ot the t'ulcrum, to engage the spindle casing and tilt it on the tulcrum, a clamp on the spindle casing, an arm. extending from the clamp, arms extendingfrom the spindle post on opposite sides of the :firstv arm, and set-screws in the spindlepostarms to engage the first arm; so that by manipulating the set-screws the spindle casing may be rotated to rotate the sleeve and change the angularity.

4.`In a cylinder inlaying machine, a hollow spindle head, a sleeve rotatably mounted in the head and held against endwise movement, a fulcrum extending inwardly from the inner face'of the sleeve-at its longitudinal center, a spindle casing extending loosely through the sleeve and resting on the tulcrum, and set-screwsxed through the ends of the sleeve on each side of the :fulcrum to engage the spindle casing and tilt the spindle casing in the sleeve'.

In a cylinder inlaying machine, a hollow spindle head, a sleeve rotatably mounted in the head and held against endwise movement, a ulcrum extending inwardly from the inner face of the sleeve at its longitudinal center, a spindle casing extending loosely through the sleeve and resting on the fulcrum, set-screws fixed through the ends of the sleeve on each side of the .fulcrum to engage' the .spindle casing and tilt the spindle casing in the sleeve, and means for rotating the sleeve to change the angularity ot the spindle casing.

In testimony whereof I have signed my name to this specification.

JACOB KLAssEN. 

